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CO2 Promoted Synthesis of Unsymmetrical Organic Carbonate by Switchable Agents Based on DBU and Alcohols
1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) is an effective nucleophilic catalyst for transesterification of dimethyl carbonate (DMC) with various alcohol and amines, which afforded the unsymmetrical organic carbonate and carbamate. It was observed that the transesterification was accelerated in the pr...

Characterising knotting properties of polymers in nanochannels
Using a lattice model of polymers in a tube, we define one way to characterise different configurations of a given knot as either 'local' or 'non-local', based on a standard approach for measuring the 'size' of a knot within a knotted polymer chain. The method involves associating knot-types to suba...

Continuous detection of HCl and NH3 gases with a high-performance fluorescent polymer sensor
A novel fluorescent triazine-based covalent organic polymer (COP-1) sensor toward HCl and NH3 gases has been designed and synthesized. Both the COP-1 powders dispersed in solvents and the COP-1 film formed on surface of quartz sheets exhibit stable fluorescence and sensitive HCl/NH3 response. Immers...

Fabrication of planar heterojunction CsPbBr2I perovskite solar cell using ZnO as electron transport layer & improved solar energy conversion efficiency
Inorganic lead halide perovskite solar cells with mixed halides have achieved reasonable power conversion efficiency with the advantage of an enhanced stability. In this work, we report the fabrication of an all inorganic cesium lead bromoiodide based planar perovskite solar cell with ZnO electron t...

Self-doped Colloidal Semiconductor Nanocrystals with Intraband Transitions in Steady State
The tunable bandgap energy has been recognized as a prominent feature of the colloidal semiconductor nanocrystal, also called the colloidal quantum dot. Due to the broken degeneracy caused by the quantum confinement effect, the electronic states of the conduction band are separated by a few hundred ...

Transition metal cations on the move: simultaneous operando X-ray absorption spectroscopy and X-ray diffraction investigations during Li uptake and release of a NiFe2O4/CNT composite
We report on results of a comprehensive investigation on reaction mechanisms occurring during Li uptake and release of the composite NiFe2O4/CNT. Operando X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS) data collected simultaneously using one in situ cell allowed thorough elucidation...

Tuning the glass micro-structure for controllable Bi0/Bi+ ions to promote efficient Ho3+ fluorescence
Bi ions with a wealth of chemical states can experience a chemical-state evolution by engineering the glass structure to manipulate its final chemical state. In this work, efficient enhancement of Ho3+ emission is observed with the change of local glass environment around Bi by adding Al2O3 in the m...

Correction: Covalent layer-by-layer films: chemistry, design, and multidisciplinary applications
Correction for ‘Covalent layer-by-layer films: chemistry, design, and multidisciplinary applications’ by Qi An et al., Chem. Soc. Rev., 2018, DOI: 10.1039/c7cs00406k....

Silkworm silk-based materials and devices generated using bio-nanotechnology
Silks are natural fibrous protein polymers that are spun by silkworms and spiders. Among silk variants, there has been increasing interest devoted to the silkworm silk of B. mori, due to its availability in large quantities along with its unique material properties. Silk fibroin can be extracted fro...

Influence of surfactants of different nature and chain length on the morphology, thermal stability and sheet resistance of graphene
The effects of surfactants of different nature (anionic, cationic and non-ionic) and chain length on the morphology, microstructure, thermal stability and electrical resistivity of liquid exfoliated graphene (G) were investigated. Microscopic (SEM and AFM) observations revealed that the thickness of...

Influence of long-range forces and capillarity on the function of underwater superoleophobic wrinkled surfaces
Underwater superoleophobic surfaces can be considered a particular type of lubricant-infused surface, that have anti-fouling properties by virtue of a trapped water layer that repels oils. However, as their function relies on a water layer being trapped in the surface roughness, it is crucial to und...

Reviving lithium cobalt oxide-based lithium secondary batteries-toward a higher energy density
By breaking through the energy density limits step-by-step, the use of lithium cobalt oxide-based Li-ion batteries (LCO-based LIBs) has led to the unprecedented success of consumer electronics over the past 27 years. Recently, strong demands for the quick renewal of the properties of electronic prod...

First-principles calculations of oxidation potentials of electrolytes in lithium–sulfur batteries and their variations with changes in environment
Oxidation potentials of electrolyte molecules in Li–sulfur (Li/S) batteries and their variations in various solvent environments are investigated using first-principles calculations in order to understand oxidative decomposition reactions of electrolytes for cathode passivation. Electrolyte solvents...

A viable strategy for screening the effects of glycan heterogeneity on target organ adhesion and biodistribution in live mice
This work represents the first broad study of testing diverse heterogenous glycoconjugates (7 different glycoalbumins) for their differential in vivo binding (11 different cancer cell types) in both cell- and animal-based studies. As a result, various changes in biodistribution, excretion, and even ...

Electromagnetic Interference (EMI) shielding performance of lightweight Metal decorated Carbon nanostructures dispersed Polyvinylidene fluoride flexible films
We report electromagnetic interference shielding of metals decorated MWCNT/rGO in polyvinylidene fluoride (PVDF) flexible films. X-ray diffraction patterns show the presence of metallic nanoparticles firmly bound with carbon fillers of the composite. The morphological studies proved the homogeneous ...


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